Keyless chuck gripping device

Details Keyless chuck gripping device Keyless chuck gripping device

1981-06-04

1984-07-17

Yost, Frank T.

Cutting by use of rotating axially moving tool

Means to drive tool

81 90A, 279 1K, 279 62, 408239R, 408241R, F04D 2502

Patent

active

044602960

ABSTRACT:
A keyless chuck gripping device for opening or closing jaws of a chuck of a rotary tool without using a chuck key includes a first portion having a surface extending at least partially around an outer surface of a chuck locking drum. The first portion is attached to a forward housing portion of the rotary tool or the outer surface of the chuck locking drum. A second portion connected to the first portion is urged into frictional or lock engagement with the unattached portion of the rotary tool where manual actuation alters rotational speed of the chuck locking drum relative to the speed of the rotary tool shaft. The second portion maintains the chuck locking drum in a stationary position while the shaft is driven by the motor, enabling the chuck locking drum to turn the chuck jaws in forward or reverse direction.

REFERENCES:
patent: 193899 (1863-10-01), Harrison
patent: 2003983 (1935-06-01), Thener
patent: 2023975 (1935-12-01), Qualey
patent: 4095811 (1978-06-01), Cohen
patent: 4277074 (1981-07-01), Kilberis
patent: 4317578 (1982-03-01), Welch

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